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Mature, well-established codebase

The first lines of source code were added to XStream in 2003. Projects with recent activity, and a code base more than five years old are likely solving vital problems and delivering consistent value, and may be organized to reward sustained effort by an engaged team of contributors.

Such a lengthy source control history in conjunction with recent activity may indicate that this code base and community are important enough to attract long-term commitment, and may also indicate a mature and relatively bug-free code base.

Note:
The source code for XStream might actually be older than the source control history can reveal. Many new projects begin by incorporating a large amount of source code from existing, older projects. You might be able to tell whether this is the case by looking for a rapid rise in the amount of code early in the project's history.

Increasing Y-O-Y development activity

Over the last twelve months, XStream
has seen a substantial increase in activity. This may be a sign that interest in this project is rising, and that the open source community has embraced this project.

Open Hub makes this determination by comparing the total number of commits made by all developers during the most recent twelve months with the same figure for the prior twelve months. The number of developers and total lines of code are not considered.

Small development team

Over the past twelve months, 2 developers contributed new code to XStream, making this a relatively small project team.

For this measurement, Open Hub considers only recent changes to the code. Over the entire history of the project, 20 developers have contributed.